Source: U.S. Bureau of Economic Analysis  

Release: Personal Income and Outlays  

Units:  Percent, Seasonally Adjusted Annual Rate

Frequency:  Monthly

BEA Account Code: A072RC
Personal saving as a percentage of disposable personal income (DPI), frequently referred to as "the personal saving rate," is calculated as the ratio of personal saving to DPI.
Personal saving is equal to personal income less personal outlays and personal taxes; it may generally be viewed as the portion of personal income that is used either to provide funds to capital markets or to invest in real assets such as residences.(https://www.bea.gov/national/pdf/all-chapters.pdf)
A Guide to the National Income and Product Accounts of the United States (NIPA).

Source: World Bank  

Release: World Development Indicators  

Units:  Number of Years, Not Seasonally Adjusted

Frequency:  Annual

Life expectancy at birth indicates the number of years a newborn infant would live if prevailing patterns of mortality at the time of its birth were to stay the same throughout its life.

Derived from male and female life expectancy at birth from sources such as: (1) United Nations Population Division. World Population Prospects, (2) United Nations Statistical Division. Population and Vital Statistics Report (various years), (3) Census reports and other statistical publications from national statistical offices, (4) Eurostat: Demographic Statistics, (5) Secretariat of the Pacific Community: Statistics and Demography Program, and (6) U.S. Census Bureau: International Database.

Source Indicator: SP.DYN.LE00.IN